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Finding the Fourth Proportional to 156,978.15, 235,467.23 and 150,854.55

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Solution

The fourth proportional to 156,978.15, 235,467.23 and 150,854.55 is: 226,281.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,978.15 : 235,467.23 = 150,854.55 : x
  2. Step 2: Convert to fraction form
    156,978.15/235,467.23 = 150,854.55/x
  3. Step 3: Cross multiply
    156,978.15x = 235,467.23 × 150,854.55
  4. Step 4: Simplify right side
    156,978.15x = 35,521,303,021.40
  5. Step 5: Solve for x
    x = 35,521,303,021.40/156,978.15
  6. Step 6: Final answer
    x = 226,281.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.